This page explains how Xiang Gao (USATT# 15946)'s rating went from 1565 to 1422 at the Butterfly East Gate Open Series held on - 24 Sep 2011. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.